John Ropp1893–1957Časová osaBirth1893, IllinoisDeath1957, Forest Park, Cook County, Illinois, USAVztahySourozenciMartin Ropp (1898–1984)RodičeGerrit Venhuizen (1870–1949)Aaltje Ketelaar (1866–1924)Zdrojewikitree Ropp-26